0001 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
0002 .. c:namespace:: DTV.video
0003
0004 .. _VIDEO_SLOWMOTION:
0005
0006 ================
0007 VIDEO_SLOWMOTION
0008 ================
0009
0010 Name
0011 ----
0012
0013 VIDEO_SLOWMOTION
0014
0015 .. attention:: This ioctl is deprecated.
0016
0017 Synopsis
0018 --------
0019
0020 .. c:macro:: VIDEO_SLOWMOTION
0021
0022 ``int ioctl(fd, VIDEO_SLOWMOTION, int nFrames)``
0023
0024 Arguments
0025 ---------
0026
0027 .. flat-table::
0028 :header-rows: 0
0029 :stub-columns: 0
0030
0031 - .. row 1
0032
0033 - int fd
0034
0035 - File descriptor returned by a previous call to open().
0036
0037 - .. row 2
0038
0039 - int request
0040
0041 - Equals VIDEO_SLOWMOTION for this command.
0042
0043 - .. row 3
0044
0045 - int nFrames
0046
0047 - The number of times to repeat each frame.
0048
0049 Description
0050 -----------
0051
0052 This ioctl call asks the video device to repeat decoding frames N number
0053 of times. This call can only be used if VIDEO_SOURCE_MEMORY is
0054 selected.
0055
0056 Return Value
0057 ------------
0058
0059 On success 0 is returned, on error -1 and the ``errno`` variable is set
0060 appropriately. The generic error codes are described at the
0061 :ref:`Generic Error Codes <gen-errors>` chapter.
0062
0063
0064 .. flat-table::
0065 :header-rows: 0
0066 :stub-columns: 0
0067
0068 - .. row 1
0069
0070 - ``EPERM``
0071
0072 - Mode VIDEO_SOURCE_MEMORY not selected.
